CN104237117A - Grain friction test device under low-speed drop hammer impact loading - Google Patents
Grain friction test device under low-speed drop hammer impact loading Download PDFInfo
- Publication number
- CN104237117A CN104237117A CN201410477928.9A CN201410477928A CN104237117A CN 104237117 A CN104237117 A CN 104237117A CN 201410477928 A CN201410477928 A CN 201410477928A CN 104237117 A CN104237117 A CN 104237117A
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- friction
- test device
- friction piece
- sample
- drop hammer
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 239000000843 powder Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 5
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 239000002360 explosive Substances 0.000 abstract description 9
- 238000011076 safety test Methods 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010060891 General symptom Diseases 0.000 description 1
- 238000004354 ROESY-TOCSY relay Methods 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a grain friction test device under low-speed drop hammer impact loading, and solves the problem that a simple and easy explosive grain friction safety test is absent in the prior art. The device mainly comprises a pre-tightening bolt, a pressing block, a sample, an impact bar, a guide sleeve, a friction body and a protection body. The test device mainly adopts a drop hammer to impact the friction body, the sample and the friction body perform relative friction movement, and pressure between the sample and the friction body is applied through screwing force of the pre-tightening bolt; the friction movement speed between the sample and the friction body can be controlled by adjusting the height of the drop hammer; and the device can be used for explosive grain friction safety research, not only is suitable for a brittle explosive grain, but also is suitable for a viscoelastic explosive grain.
Description
Technical field
The invention belongs to explosive wastewater security evaluation field, relate to a kind of low speed and drop hammer to clash into and load lower powder column friction test device.
Background technology
The safety research of explosive wastewater under rubbing action, it is the important component part that explosive wastewater mechanical stimulus loads lower safety research, what formed standard friction device mainly contains Muscovite Ke Ziluofu friction pendulum, the BAM frictiograph of Germany, the ABL frictiograph of the U.S. and ROTO frictiograph etc., this several test unit is mainly applicable to milligram level powdery or slurry material.Wherein the explosive wastewater friction testing of China mainly adopts Ke Ziluofu friction test device, this device characteristic is that sample is placed between the circular steel column of two diameter 10mm, by hydraulic means, described steel column is pressurizeed up and down, the pendulum of a heavy 2700 ± 27g is had to be assemblied in 600 ± 5mm swing arm, pendulum swings due to gravity, pendulum hits bar, hits bar and acts on the sidewall of the circular steel column above sample, make sample and metal column that relative fricting movement occur.This device is applicable to the pulverized specimen of milligram level.The friction safety Journal of Sex Research of powder column can not be carried out.
Summary of the invention
In order to study shaping explosive wastewater and metal friction security, the invention provides a kind of low speed and dropping hammer to clash into and load lower powder column friction test device, by pretension bolt, briquetting, sample, hit bar, orienting sleeve, friction piece, protection body form; Wherein friction piece is arranged in the mounting hole of protection body vertical direction, the axes normal of the mounting hole of rubbing surface and friction piece horizontal direction, by the mounting hole of cylindrical sample by friction piece horizontal direction, contact with friction piece rubbing surface, then cylindrical briquettes is put into the mounting hole of friction piece horizontal direction, then along the screw thread on the mounting hole of friction piece horizontal direction, slowly screw pretension bolt, it is made to contact briquetting, the distance of slow adjustment friction piece baffle plate lower surface and protection upper surface, this distance be friction piece finally and the frictional distance of sample.
Described friction piece baffle plate lower surface is 20 ~ 25mm with the vertical range of protection upper surface.
Advantage of the present invention: (1) the present invention can be carried out friction safety test (2) friction piece minute projections to powder column and can be controlled by machining.(3) device is when assembling, and sample and pretension bolt are placed with briquetting, and when being exerted a force to pretension bolt by dial torque wrench, pressure is applied on sample by briquetting, and sample does not rotate friction in pressurized process and briquetting, and process of the test is safer.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is that low speed drops hammer to clash into and loads lower powder column friction test device sectional view.
Fig. 2 is the front view of in Fig. 16.
Fig. 3 is the left view of friction piece in Fig. 1.
Fig. 4 is the vertical view of friction piece in Fig. 1.
Embodiment
Shown in 1, lower powder column friction test device sectional view is loaded for low speed drops hammer to clash into, protection body 7 is placed on the bottommost of package unit, friction piece 6 is placed in the mounting hole of protection body 7 vertical direction, the baffle plate lower surface of friction piece 6 and protection body 7 place the iron block of a predetermined altitude, this is highly the frictional distance of sample 3 end face during test, rotary friction rub body 6, make the axis perpendicular of friction piece 6 rubbing surface 6-1 and protection body 7 horizontal direction mounting hole, sample 3 is put into the mounting hole of protection body 7 horizontal direction, again briquetting 2 is put into the mounting hole of protection body 7 horizontal direction, with finger, briquetting is pushed away forward, sample 3 end face is contacted with friction piece 6 rubbing surface 6-1, dial torque wrench is adopted to be screwed in by pretension bolt 1 on the mounting hole screw thread of protection body 7 horizontal direction, rotate afterburning, force scope is 2/3rds of sample 3 compressive strength, friction piece 6 is set with orienting sleeve 5, the one end hitting bar 4 is placed in orienting sleeve 5, low speed is dropped hammer clash into and load the lower end that lower powder column friction test device is positioned over drop-weight meter, remove the baffle plate lower surface of friction piece 6 and protection body 7 place between iron block, release is dropped hammer, bar 4 is hit in impact of dropping hammer, fricting movement is there is in sample 3 with the rubbing surface 6-1 of friction piece 6, complete the friction safety test of a sample.
Embodiment 1:
Referring to figs. 1 through Fig. 2, the present embodiment provides a kind of low speed and to drop hammer the concrete structure and assembling and manufacture example that clash into and load lower powder column friction test device.Under this low speed drops hammer and clashes into loading, powder column friction test device at least includes pretension bolt 1, briquetting 2, sample 3, hits bar 4, orienting sleeve 5, friction piece 6, protection body 7.
See Fig. 1, protection body 7 is two section type cylindrical structure, epimere body diameter 160 ~ 180mm, height 60 ~ 80mm, hypomere body diameter 70 ~ 80mm, height 25 ~ 35mm, a through-hole diameter 30 ~ 40mm is had in described two section type right cylinder vertical centred position, have in the middle part of epimere cylinder a lateral aperture and above-mentioned vertical through hole through, described horizontal through hole diameter 20 ~ 30mm, has screw thread in the outside being positioned at epimere cylinder at horizontal through hole, diameter of screw diameter 20 ~ 30mm, pitch diameter 1 ~ 2mm, reach 30 ~ 40mm; Briquetting 2 diameter 20 ~ 30mm, length 20 ~ 30mm; Hitting bar 4 diameter is 20 ~ 30mm, length 100 ~ 200mm; Pretension bolt 1 diameter of screw diameter 20 ~ 30mm, pitch diameter 1 ~ 2mm, bolt length 30 ~ 40mm; Orienting sleeve 5 wall thickness 2 ~ 3mm, internal diameter 20 ~ 30mm, height 30 ~ 40mm.
Be syllogic column structure see Fig. 2 friction piece 6, epimere body diameter 20 ~ 30mm, height 10 ~ 20mm, stage casing body diameter 80 ~ 90mm, height 10 ~ 20mm, hypomere body diameter 30 ~ 40mm, height 90 ~ 100mm, hypomere cylinder has a kerf, notch depth 8 ~ 10mm, incision length 60 ~ 70mm, tangent plane is rubbing surface 6-1, and surfaceness is 3.2 ~ 6.4 μm.
Described low speed drop hammer clash into load lower powder column friction test device pretension bolt 1, hit bar 4, material that orienting sleeve 5, friction piece 6, protection body 7 adopt is 1Cr18Ni9Ti, the material that briquetting 2, orienting sleeve 5 adopt is teflon.
Claims (3)
1. low speed drops hammer to clash into and loads a lower powder column friction test device, it is characterized in that: by pretension bolt (1), briquetting (2), hit bar (4), orienting sleeve (5), friction piece (6), protection body (7) form; Described friction piece (6) is arranged in the mounting hole of protection body (7) vertical direction, the axes normal of the mounting hole of rubbing surface (6-1) and friction piece (7) horizontal direction, sample (3) is contacted with friction piece (6) rubbing surface (6-1) by the mounting hole of friction piece (7) horizontal direction, briquetting (2) is arranged in the mounting hole of friction piece horizontal direction, pretension bolt (1) applies predetermined pressure to briquetting (2), and friction piece (6) baffle plate lower surface (6-2) is 20 ~ 25mm with the distance of protection body (7) upper surface.
2. low speed according to claim 1 drops hammer to clash into and loads lower powder column friction test device, it is characterized in that: described pretension bolt (1), hit bar (4), material that orienting sleeve (5), friction piece (6), protection body (7) adopt is 1Cr18Ni9Ti, the material that briquetting (2) adopts is teflon.
3. low speed according to claim 2 drops hammer to clash into and loads lower powder column friction test device, it is characterized in that: described rubbing surface (6-1) surfaceness is 3.2 ~ 6.4 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477928.9A CN104237117B (en) | 2014-09-18 | 2014-09-18 | Grain friction test device under low-speed drop hammer impact loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477928.9A CN104237117B (en) | 2014-09-18 | 2014-09-18 | Grain friction test device under low-speed drop hammer impact loading |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104237117A true CN104237117A (en) | 2014-12-24 |
| CN104237117B CN104237117B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410477928.9A Expired - Fee Related CN104237117B (en) | 2014-09-18 | 2014-09-18 | Grain friction test device under low-speed drop hammer impact loading |
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| CN (1) | CN104237117B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928871A (en) * | 2016-05-30 | 2016-09-07 | 北京理工大学 | Forming explosive friction testing system and testing method thereof |
| CN106018464A (en) * | 2016-05-13 | 2016-10-12 | 西安近代化学研究所 | Explosive loading and penetrating stability evaluation method based on equivalent model experiment |
| US9594012B1 (en) * | 2015-04-23 | 2017-03-14 | The United States Of America As Represented By The Secretary Of The Navy | Sliding friction tester for explosive material |
| CN106769836A (en) * | 2016-11-15 | 2017-05-31 | 中国工程物理研究院化工材料研究所 | Test method and inclined-plane percussion device that powdery energetic material tiltedly hits |
| CN108226028A (en) * | 2018-01-09 | 2018-06-29 | 中国工程物理研究院化工材料研究所 | Drop hammer type high-energy insensitive explosive friction sensitivity tester |
| CN111707607A (en) * | 2020-07-21 | 2020-09-25 | 北京化工大学 | Friction sensitivity testing device and method |
| CN114689504A (en) * | 2022-04-07 | 2022-07-01 | 中国兵器装备集团自动化研究所有限公司 | Internal and external friction force detection device for explosive column |
| CN114689504B (en) * | 2022-04-07 | 2024-11-12 | 中国兵器装备集团自动化研究所有限公司 | Internal and external friction force detection device for initiating explosive device column |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6182507B1 (en) * | 1998-12-08 | 2001-02-06 | The United States Of America As Represented By The Secretary Of The Navy | Mechanical water sensor |
| JP2002048706A (en) * | 2000-07-31 | 2002-02-15 | Akebono Brake Res & Dev Center Ltd | Material property evaluating device and material property evaluating method |
| CN101216478A (en) * | 2007-12-28 | 2008-07-09 | 中北大学 | Explosive friction sensitivity instrument |
| CN201811913U (en) * | 2010-09-18 | 2011-04-27 | 戚文革 | Tester for testing impact sensitivity of explosive |
| CN102706224A (en) * | 2012-05-23 | 2012-10-03 | 西安近代化学研究所 | Friction load loading device |
| CN103322869A (en) * | 2013-05-20 | 2013-09-25 | 西安近代化学研究所 | Missile body charge friction environment simulating device |
| CN203443873U (en) * | 2013-08-21 | 2014-02-19 | 湖南军成科技有限公司 | Friction sensitivity and impact sensitivity integrative machine |
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2014
- 2014-09-18 CN CN201410477928.9A patent/CN104237117B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6182507B1 (en) * | 1998-12-08 | 2001-02-06 | The United States Of America As Represented By The Secretary Of The Navy | Mechanical water sensor |
| JP2002048706A (en) * | 2000-07-31 | 2002-02-15 | Akebono Brake Res & Dev Center Ltd | Material property evaluating device and material property evaluating method |
| CN101216478A (en) * | 2007-12-28 | 2008-07-09 | 中北大学 | Explosive friction sensitivity instrument |
| CN201811913U (en) * | 2010-09-18 | 2011-04-27 | 戚文革 | Tester for testing impact sensitivity of explosive |
| CN102706224A (en) * | 2012-05-23 | 2012-10-03 | 西安近代化学研究所 | Friction load loading device |
| CN103322869A (en) * | 2013-05-20 | 2013-09-25 | 西安近代化学研究所 | Missile body charge friction environment simulating device |
| CN203443873U (en) * | 2013-08-21 | 2014-02-19 | 湖南军成科技有限公司 | Friction sensitivity and impact sensitivity integrative machine |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9594012B1 (en) * | 2015-04-23 | 2017-03-14 | The United States Of America As Represented By The Secretary Of The Navy | Sliding friction tester for explosive material |
| CN106018464A (en) * | 2016-05-13 | 2016-10-12 | 西安近代化学研究所 | Explosive loading and penetrating stability evaluation method based on equivalent model experiment |
| CN105928871A (en) * | 2016-05-30 | 2016-09-07 | 北京理工大学 | Forming explosive friction testing system and testing method thereof |
| CN105928871B (en) * | 2016-05-30 | 2019-10-25 | 北京理工大学 | A kind of packaged explosive friction testing system and its test method |
| CN106769836A (en) * | 2016-11-15 | 2017-05-31 | 中国工程物理研究院化工材料研究所 | Test method and inclined-plane percussion device that powdery energetic material tiltedly hits |
| CN108226028A (en) * | 2018-01-09 | 2018-06-29 | 中国工程物理研究院化工材料研究所 | Drop hammer type high-energy insensitive explosive friction sensitivity tester |
| CN111707607A (en) * | 2020-07-21 | 2020-09-25 | 北京化工大学 | Friction sensitivity testing device and method |
| CN111707607B (en) * | 2020-07-21 | 2024-05-28 | 北京化工大学 | Friction sensitivity testing device and method |
| CN114689504A (en) * | 2022-04-07 | 2022-07-01 | 中国兵器装备集团自动化研究所有限公司 | Internal and external friction force detection device for explosive column |
| CN114689504B (en) * | 2022-04-07 | 2024-11-12 | 中国兵器装备集团自动化研究所有限公司 | Internal and external friction force detection device for initiating explosive device column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104237117B (en) | 2017-02-15 |
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Granted publication date: 20170215 |
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